SAMSUNG DISPLAY CO., LTD.; Kim, Soo-Yon; Hwang, Seok-Hwan; Kim, Young-Kook; Jung, Hye-Jin; Lim, Jin-O; Han, Sang-Hyun; Jeong, Eun-Jae; Park, Jun-Ha; Lee, Eun-Young; Lee, Bo-Ra; Lee, Jong-Hyuk Patent: US2014/27721 A1, 2014 ; Location in patent: Paragraph 0127; 0130 ;